Thanatos is the AI behind the vault that allows people who are programmed into it to see glimpses of past timelines during moments of trauma such as seeing a murder with a password. He resigns in a robot rat that cannot leave The Hammond Manor but knows everything that can and will happen within it. His master is the anthro boar Roswell and he will do anything to to serve him and his wishes. He's smug about how he's part of an experiment to try to find a timeline where the least people die.